Hydraulic valve.



A. J. COLLAR.

HYDRAULIC VALVE. APPLICATION FILED SEPT. 24, 1913.

1,128,228, Patented Feb. 9, 1915.

2 SHEETS-SHEET 1.

I WITNESSES: INVENTOR A. J. COLLAR.

HYDRAULIC VALVE.

APPLIOATION FILED SEPT.24,1913.

1,128,228. Patented Feb. 9, 1915.

2 SHEETYSSHEBT 2.

IN EN TO R Qdom'mzm Jjllar' WITNESSES:

MM A 15/- as hereinafter more ADONIBAM J; COLLAR, 0F

YBEKA, CALIFORNIA.

, HYDRAULIC VALVE.

To all whom it may concern: Be it known that I, AnoNrRAivr J. COLLAR, acitizen of the United States, residing at Yreka, in the county ofSiskiyou and State of California, have invented new and use; Y

' Hydraulic Valves, of

ful Improvements in which the following is a specification.

This invention relates to a hydraulic swinging gate valve.

The object of the a simple, cheaply which is particularly adapted forlarge size pipe lines and which is so constructed that the valve propermay be opened or closed by the pipe line pressure, through a system ofvalve-controlled ports formed in the easing of the valve.

Another object of the invention is to provide means by which the valvemay be locked in the open or closed position.

Other objects will appear hereinafter.

. The invention consists of the parts and the construction andcombination of parts fully described and claimed, having reference tothe accompanying drawings, in which, l

Figure 1 is a vertical longitudinal section of the valve. Fig. 2\is aplan view of same showing the upper housing and valve re-v moved. Fig. 3is a plan view of the valve partly broken away, showing the connectionof the indicating mechanism with relation to the valve. Fig. 4: is aside elevation of the valve. Fig. 5 is a modification of the packingmeans.

Referring to the drawings: A indicates a valve casing having an inletopening 2 and an outlet opening 3, and formed within the casing betweeninvention is to provide said openings is a Valve seat 4 upon which avalve 5, pivoted at 6, is adapted to seat. The upper side of the casingis provided with an opening 7 through which the valve 5 is inserted whenthe parts are assembled, and is further provided with a packing groove 8extending around the sides of the opening so as to pack the sides andfront portions of the valve, thus preventing any undue leakage at thispoint. The acking groove under normal conditions is lled with a soft.pac ing which is covered by three thin strips of angle brass 9, theends of which are cut on an angle, as indicated in Fig. 2, to fit snuglyagainst each other. The combination of the soft packing, together withthe brass Specification of Letters Patent.

manufactured gate valve- Patented Feb. 9, 1915.

Application flied September 24, 1913. Serial No. 791,529.

strips, forms an ideal packing in this instance, as the water and airpressure above the strips act to automatically compress the packing andforce it out into thecontact with the face of the sides of the valve.

For the purpose of securing the packing within the groove 8, and alsofor the purpose of forming ahousing for" the valve 5 when this is liftedinto the open position, a housing 10, secured as at 11, has beenprovided. Suitably secured within this housing, as at 12, is a springclamping plate 13, having a width approximately the same as thesegmental face 14. of thevalve,'and extendmgthrough a packing ring 15formed in the front face of the-housing 10, in a position where it willcontact with the lower end of the clamping plate 13, is an adjustingscrew 16 provided for the purpose of throwing the clamping plate 13 intoclamping engagement with the segmental face 14 of the valve when this islifted into the open position.- The housing 10 is further provided withan aperture closed by a removable lug 17 through which aperture a wirehoo or like implement may be inserted to -lift'the valve when-no wateris being conveyed through the pipe-line; a suitable hook or projection18 being secured to the inner face of the valve 5 for this'purose.

Mounted in the rear portion of the housing 10 is a two-way valve 19provided with an operating'lever 20, and communicating with said valveis a'ser'ies of ports or passages 21-2 2 and 23; theport 2 1 being soreceiving chamber 24' formed in the housing, while the port 23communicates with the discharge end of the casing A. The port 2-2 isonly provided as an auxiliary exhaust port, the'use of which will belater described.

In opleration when it is desired to water t the arrow a, it is onlynecessary to turn the valve 19 into the position indicated in-Fig. 1.This willimmediately bring the ports 21 and 23 into communication witheach other and relieve the chamber 24: of any water under pressure whichmay leaked .by the packing surrounding the valve. The valve 5 thusrelieved of any pressure upon its upper side, will immediately'open, asits lower surface is then exposed to the full pressure of the fluidcon-' have ducted through the valve. The opening of the valve will thuspermit a..free...flow through the valve inthe directionindicated, as thepressure within the casing A sure. locked or held inthis position byadvancing the set screw 16, as-the' forward movement of the set screw 16will immediately force the clamping plate 13 against the outer face 14:of the valve with suflicient pressure to retain this in the openposition. WVhen it is desired to' close the valve it 15 becomesnecessary to turn the valve 19 to a position where communication betweenthe ports 21 and 23 is closed. The water leaking past the packing 9 and.entering the chamber 24 is thus enabled to build up a pressure thereinwhich, acting onthe valve surface exposed thereto, is, sufficient. toovercome the opposing pressure against the 'valveat the inlet 2,whereby, to force the valve; in a'idownward direction against the25-seat 4, thus closing. the valve and stopping the flowof waterthroughthe casing. The entrance ;of the water into'chamber 24:=1I1- cidentallycompresses the air which may be trapped therein, and the expansive forceof I this compressed air tends to move;the packing into engagement with.the valve face and sides as above stated.

By referring to Fig. 3 it will be: seen that the valve proper isprovided with a pivot pin or gudgeon 25, one end of which issufficiently slotted, as indicated at '26, to receive a. flat-endedshaft 27 which is so positioned as to extend through a.stufling-box 28,formed in,the sideof'the casing. The outer end 'of the shaft27isprovided with an indicating arm 29 which is so positioned as to.assumethe same position as. the valve; the. shaft'27 being. secured inthe gudgeon of'the valve will thus move in unison with same anducausetheindicating arm to reg- .ister the exact position ofthevalve withinthe casing.

' By referring to Figs. 1 and 2 it will be seen that the gudgeonssupporting the valve 5 are surrounded with bushings 30 which Qthuseliminating any expensive, machine work and fitting with relation to thevalve seat.

By referring to Fig. 4, it will be seen that the forward or pressureside of-the casing .Yided. with a valve 35.

are slotted, as. indicated at 31, to permit A is connected with thechamber 24, formed 1,1ae,aae.

in the upper housing 10, by a. ,ipe 34:, pro- The va ve 35 is normallyclosed but. may be opened to force high pressure water into the chamber24: if

;.the ,:valve 5 should have any tendency to stick in the upper housing.It will be understood that enough water leakage into the chamber 24,through the packing 8, takes place to close the valve, and-that thevalve 35 is only used under extreme conditions when the valve becomesaccidentally clogged by sedimentor other foreign material.

. By again referring to Fig; 1, itwill be seen that it is possible toturn the valve into a such position as to form communication between'theports 21 and 22; the. valve 19, however, is only-turned-into thisposition when it is desired to open the valve 5 against a high pressureon the discharge side.

The valve constructed as here shown is simple and compact inconstruction and positive in operation. The position of the severalports shown insures the proper opening and closing of the valve 5 underany and all conditions, whether it be higher low pressure, andthe'general design and osition of the movable parts'permit o thecheapest possible construction without reducing the eiiiciencyorreliable operation of the valve.

By providing a-;valve constructed as here shown, it is also possible tofeed Water in the opposite direction. "This is accomplished by turningthe valve into register with port 22, which will allow the valveto-open; and

.the closing of same is accomplished by turning the valve. intoregister'with the port 28.

'A suitable form'of packing-consisting of a strip, of flat brass,indicated in Fig. 5, that lies on top 'of the'angle brass, is used inthis instance to resist the downward pressure .from the, upper chamber.

The materials and finish of the several parts of the valve are such asexperience and, judgment of the manufacturer may dictate.

Having thus described my invention what I-claim and desire to secure byLetters Patent, is:

: 1. In a hydraulic gate valve, a casing having a valve seat therein, apivoted valve in the casing having a segmental face, a housing on thecasinginto which the valve is adapted to swing, a' spring clamping platesubstantially-the same width as that of said segmental face having itsupper end secured to the housing and having its lower end free andadapted to engage the segmental face of the valve,-. and means forengagement with the.free end of said clamping plate to move and holdsame in frictional engagement with the segmental face of the valve.

2; In a hydraulic, gate valve, a casing having a valve seat therein, avalve pivoted mental face which connects the on the upper face of thepacking and have downwardly bent portions which contact with the saidface and sides of the valve,

said strips being movable by fluid pressure 10 to compress the packing.

In testimony whereof I have hereunto set I my hand in the presence oftwo subscribing witnesses.

ADONIRAM J COLLAR.

Witnesses:

C. J. LUTTRELL, W. T. Bnown.

